gibson



(No Model.) 2 Sheets-Sheet 1.

W. P. GIBSON.

VALVE OPERATING DEVICE FOR ELEVATORS.

No. 412,330. Patented Oct. 8, 1889.

'/ a r w v 1 I 1 F f a I I I i 4 N PETERS. Fbck-Lillwgrapber. Wuhingmn,91C.

2 Sheets8heet 2.

(N0 Modexf W. P. GIBSON.

VALVE OPERATING DEVICE FOR ELEVATORS.

No. 412,330. Patented Oct. 8, 1889.

ttdi,

N PEKERi PhnQn-Umagnphar, wnhin lm. 0.1:,

UNITED STATES WILLIAM P. GIBSON, OF NEW YORK, N. Y.

VALVE-OPERATING DEVICE FOR ELEVATORS.

SPECIFICATION forming part of Letters Patent N 0. 412,330, dated October8, 1889.

Application filed December 31, 1888. serial No. 294,999. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM P. GIBSON, a citizen of the United States,residing at New York, county of New York, and State of New York, haveinvented certain new and useful Improvements in Valve-Operating Devicesfor Elevators, fully described and represented in the followingspecification and the accompanying drawings, forming a part of the same.

This invention relates to improvements in devices for operating thevalve or other stopping and starting mechanism of an elevator from theelevator-car. Y

The present invention consists of a peculiar construction andarrangement of what is commonly known as .a deflecting device, the'movement of which in one direction causes a downward strain to beexerted upon a rope connected to operate said valve orother mechanism,and the movement of which in the opposite direction causes an upwardstrain upon the rope, the device in its normal position being soarranged as to travel with the car out of contact with the rope.

The invention also consists of a modification in the construction ofthis deflecting device,which will be hereinafter fully described.

In the accompanying drawings, Figure 1 is a front view of anelevator-car provided with my improved deflecting device. Fig. 2 is ahorizontal section of the same on the line 2 of Fig. 1. Fig. 3 is asection on the line 3 of the same figure. Fig. 4 is a view similar toFig. 1, illustrating a modification which will be hereinafter described.Fig. 5 is a section on the line 5 of Fig. 4, and Fig. 6 is adiagrammatic view illustrating the connections between the elevator-carand the valve mechanism of the elevator.

In said drawings it will be understood that A represents theelevator-car, and B the rope passing over sheaves O at the top of theelevator-shaft and connected to operate the main valve in the usualmanner, as shown in Fig.6. As shown in the present case, the rope B isconnected to operate the two primary valves of an auxiliary valvemechanism, such as shown in my companion application, filed December 31,1888, Serial No. 294,995; but it is to he understood that the inventionis not limited in its application to avalve mechanism of this character,but may be used in connection with any form of stopping and startingmechanism which can be controlled by a rope from the car. The rope B islocated outside the car A, and the car A has secured to its frontportion, upon the outer side thereof, a plate a, in which is journaledthe shaft of a pulley D, the periphery of which moves freely along therope D without deflecting it. The front wall of the car has also fulcrumed to it at m, on its inner side, a lever E, carrying a pin Z), workingin a slot 0 in the wall of the car, and upon the outer side of said wallsecured rigidly to a frame F. The frame F carries at its upper and lowerends deflecting-pulleys G H, respectively, in contact with the rope B.The frame F also carries a pair of smaller pulleys g 77., arrangedopposite the pulley D, the shafts of which smaller pulleys enter andwork in slots (Z 6, respectively, formed insaid frame. The shaft of eachof the pulleys g h is journaled in a head -i,-formed upon a rod j, oneend of which passes through an opening in a projection k, formed upon anarm f, projecting outward from the frame F. The pulleys g hare heldnormally in the outer end of their slots and in contact with the rope Bby means of springs Z, secured between the heads '1'- and theprojections 7c of the arms f. (See Fig.1.)

The operation of the apparatus described is as follows: To cause theascentof the car, the conductor will rock the lever E downward into theposition shown by dotted lines in Fig. 1, thereby tilting the upper endof the frame F toward the rope B and its lower end outward therefrom.\Vhen the frame has been thus moved, the pulley h will be drawn out ofcontact with the rope B, the pulley g remaining in contact with saidrope. The deflecting-pulley G, moving with the frame pressing againstthe rope B, will deflect it out of its perpendicular position into theposition shown by dotted lines in Fig. 1, said rope at the same timebeing lightly clamped ice-- tween the pulley g and pulley D. The rope Bwill be clamped between the pulleys g and D with sufficient pressure toprevent the deflection of the rope by the pulley G from drawing upwardthe part of the rope below the pulleys D g, and consequently saiddeflection will exert a downward pull sufficient to operate thevalve-operating connections to tion.

move the main valve to position to cause the downward movement of thepower-piston and the raising of the car. When this movement of the carhas been secured, the conductor will rock the lever E to its horizontalposition, the deflecting-pulleys G H and the pulleys g h then returningto their normal posi- To arrest the ascent of the car, the conductorwill rock the lever E upward, thus moving the deflecting-pulley G out ofcontact with the rope B and forcing the deflectinging-pulley H inward todeflect the rope B below the pulley D and cause the pulley h to clampthe rope lightlyagainst the pulley D. The deflect-ion of the rope atthis point will draw it upward, and thus cause it to return the mainvalve to the position from which it was moved in starting. When the carhas thus been arrested, the conductor will restore the lever E to itshorizontal position. To cause the car to ascend, the conductor willagain rock the lever E upward, thereby raising the rope and causing theproper movement of the power-piston; and so the operation will continuethe tilting of the frame F by means of the lever E to cause thedeflection of the rope B by the deflecting-pulley G or H, also causingthe pulley g or h, as the case may be, to press the rope with a limitedamount of force against the pulley D upon the portion of the peripherythereof next the deflected portion of the rope, the other pulley g or72. being thrown out of contact with the rope.

In the organization illustrated in Figs. 4 and 5 the lever E isfulcrumed, as in the previously-described organization, and is ofhellcrank form, and at its vertical portion is provided with a slot m,in which works a pin b, passing through and working in a horizontal slotn in the wall of the elevator-car, and secured to the frame F, which isin this case of S shape. The ends of the frame pass through guide-plates0 upon the wall of the car, guiding the movement laterally of saidframe. The frame F carries deflecting-pulleys G H, corresponding to thedeflecting-pulleys of the former construction. Said frame is alsoprovided upon opposite sides of the rope B with projecting arms f, likethe arms f of said former construction, and like said arms provided withslots 01 e, in which are journaled the shafts of pulleys g h,respectively, held in contact with the rope B upon opposite sidesthereof by springs Z. Each of said pulleys g 72 has opposed to it, uponopposite sides of the rope B, a pulley D, corresponding to the pulley Dof the former construction, journaled in a plate a, secured to the wallof the elevator-car.

In the operation of the apparatus when thus constructed, to cause thecar to ascend, the conductor will rock the lever E upward. The lever,when thus rocked, will move the pin bin the horizontal slot and throughit move the frame F laterally from left to right, said frame beingguided in a lateral path of movement by the guide-plates o, as beforeremarked. This movement of the frame F will take the deflecting-pulley Hand the pulley h out of contact with the rope B and cause thedeflecting-pulley G to deflect the rope above the pulley D, at the sametime, by compressing the spring Z of the pulley g, causing said pulleyto press the rope B against the pulley D, with the effectbeforeexplained. The lever E will then be restored to its horizontal position.To arrest the car in its ascent, the lever E will be rocked downward,when the frame F will travel laterally in an opposite direction, causingthe proper deflection of the rope B by the deflecting-pulleyI-I belowthe lower pulley D. To cause the car to descend, the lever E will bemoved back to its horizontal position and then again rocked downward,when the operation will be repeated.

\Vhat I claim is- I 1. The combination, with a rope B, connected tooperate the stopping and starting mechanism of the elevator, ofgripping-pulleys arranged to grip the rope with a moderate pressure anda movable deflecting-pulley for deflecting the rope upon one side ofsaid gripping-pulleys, substantially as described.

2. The combination, with a rope moving freely over a pulley at the topof the elevatorshaft and having its ends connected to operate thestopping and starting mechanism to cause the car to ascend and descendasthe rope is moved in opposite directions, of gripping-pulleys arrangedto grip the rope with a moderate pressure and movable deflectingpulleyslocated above and below said gripping-pulleys and arranged to deflectthe rope upon opposite sides of said gripping-pulleys, substantially asdescribed.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

WM. P. GIBSON. Witnesses:

J. J. KENNEDY, EDWARD W001).

